<template>
  <div class="app-container">
    <h3>&nbsp;&nbsp;讲师列表</h3>
    <!--查询表单-->
    <el-form :inline="true" class="demo-form-inline">
      <el-form-item>
        <el-input v-model="teacherQuery.name" placeholder="讲师名"/>
      </el-form-item>

      <el-form-item>
        <el-select v-model="teacherQuery.level" clearable placeholder="讲师头衔">
          <el-option :value="1" label="高级讲师"/>
          <el-option :value="2" label="首席讲师"/>
        </el-select>
      </el-form-item>

      <el-form-item label="添加时间">
        <el-date-picker
          v-model="teacherQuery.begin"
          type="datetime"
          placeholder="选择开始时间"
          value-format="yyyy-MM-dd HH:mm:ss"
          default-time="00:00:00"
        />
      </el-form-item>
      <el-form-item>
        <el-date-picker
          v-model="teacherQuery.end"
          type="datetime"
          placeholder="选择截止时间"
          value-format="yyyy-MM-dd HH:mm:ss"
          default-time="00:00:00"
        />
      </el-form-item>

      <el-button type="primary" icon="el-icon-search" @click="getPageList()">查询</el-button>
      <el-button type="default" @click="resetData()">清空</el-button>

    </el-form>

    <!-- 表格 -->
    <el-table
      :data="list"
      border
      fit
      highlight-current-row>

      <el-table-column
        label="序号"
        width="70"
        align="center">
        <template slot-scope="scope">
          {{ (current - 1) * limit + scope.$index + 1 }}
        </template>
      </el-table-column>

      <el-table-column prop="name" label="名称" width="100"/>

      <el-table-column label="头衔" width="80">
        <template slot-scope="scope">
          {{ scope.row.level===1?'高级讲师':'首席讲师' }}
        </template>
      </el-table-column>

      <el-table-column prop="intro" label="资历"/>

      <el-table-column prop="createTime" label="添加时间" width="160"/>

      <el-table-column prop="sort" label="排序" width="60"/>

      <el-table-column label="操作" width="200" align="center">
        <template slot-scope="scope">
          <router-link :to="'/teach/teacher/edit/'+scope.row.id">
            <el-button type="primary" title="修改" size="mini" icon="el-icon-edit"
            ></el-button>
          </router-link>
          <el-button type="danger" title="删除" size="mini" icon="el-icon-delete" @click="removeDataById(scope.row.id)">
          </el-button>
        </template>
      </el-table-column>
    </el-table>

    <!-- 分页 -->
    <el-pagination
      :current-page="current"
      :page-size="limit"
      :total="total"
      style="padding: 30px 0; text-align: center;"
      layout="total, prev, pager, next, jumper"
      @current-change="getPageList"
    />
  </div>
</template>

<script>
  import teacher from '@/api/teach/teacher'

  export default {
    name: "list",
    data() {//定义属性和初始化数据
      return {
        teacherQuery: {},//查询对象
        list: [],//数据集合
        current: 1,//当前页
        limit: 8,//每页显示记录数
        total: 0,//总记录数
        teacher: {}
      }
    },
    created() {//页面渲染前执行
      //初始化数据
      this.getPageList()
    },
    methods: {//定义方法，在页面中其他位置调用
      //1 获取讲师列表
      getPageList(current = 1) {
        this.current = current
        teacher.queryPageList(this.current, this.limit, this.teacherQuery)
          .then(response => {//查询成功
            //将后端返回的数据赋值给list
            this.list = response.data.items
            //将总记录数赋值给total
            this.total = response.data.total
          })
      },

      updateFunction(data) {
        this.teacher = data
      },

      //2 清空表单的方法
      resetData() {
        //清空查询对象
        this.teacherQuery = {}
        //调用查询所有方法刷新页面
        this.getPageList(1)
      },

      //3 删除的方法
      removeDataById(id) {
        this.$confirm('此操作将永久删除该讲师, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        })
          .then(() => {//点击确定执行
            teacher.removeTeacherById(id)
              .then(response => {//删除成功
                console.log(response)
                //提示
                this.$message({
                  type: 'success',
                  message: response.message
                });
                //刷新页面
                this.getPageList()
              })
              .catch(response => {//删除失败
                //提示
                this.$message({
                  type: 'error',
                  message: response.message
                });
                //刷新页面
                this.getPageList()
              })
          })
          .catch(() => {//点击取消执行
            this.$message({
              type: 'info',
              message: '已取消删除'
            });
          });
      }
    }
  }
</script>

<style scoped>

</style>
